Unconventional Layer-by-Layer Assembly of Graphene Multilayer Films for Enzyme-Based Glucose and Maltose Biosensing

Zeng, Gang; Xing, Yibo; Gao, Jian; Wang, Zhiqiang; Zhang, Xi

doi:10.1021/la102806v

Cited by 168 publications

(94 citation statements)

References 63 publications

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“…This enables the controlled release of the biocide and, therefore, provides a safe environmental loading of the biocide together with specific targeting. A similar technology of nano-containers loaded with active compounds is already used in drug delivery [13], medical sensory applications [14], and for protection against corrosion [15]. Similarly, the technology of nano-containers for antifouling purposes has been explored in order to assess antifouling applications.…”

Section: Introductionmentioning

confidence: 99%

Antimacrofouling Efficacy of Innovative Inorganic Nanomaterials Loaded with Booster Biocides

Gutner-Hoch

Freitas

Oliveira

et al. 2018

JMSE

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Abstract:The application of nano-structured compounds has been increasing rapidly in recent years, in several fields. The use of engineered nano-materials as carriers of antifouling compounds is just beginning and already reveals clear advantages compared to bulk active compounds, such as slowed and controlled release, novel functionality, and high loading capacity. This present study assesses the antifouling efficacy of two nanostructured materials, spherical mesoporous silica nanocapsules (SiNC) and Zn-Al layered double hydroxides (LDH), loaded with two commercial biocides, zinc prithione (ZnPT) and copper pyrithione (CuPT). The study used adult mussels from three geographical regions, the Atlantic Ocean, Mediterranean Sea, and the Red Sea, to examine the efficacy of the innovative compounds. The efficacy of these compounds on larvae of the bryozoan Bugula neritina from the Mediterranean Sea and the Red Sea was also examined. The results of this study demonstrated the environmentally friendly properties of unloaded LDH against the two-model systems, adult mussels or bryozoan larvae. ZnPT entrapped in LDH demonstrated the most effective antifouling compound against the two model systems. A comparison of the impact of the two compounds on macrofouling organisms from the different marine habitats examined in this study indicates a distinction associated with the organisms' different ecosystems. The Red Sea mussels and bryozoans, representing a tropical marine ecosystem, yielded the highest efficacy values among tested Atlantic Ocean and Mediterranean Sea mussels and bryozoans.

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Section: Introductionmentioning

confidence: 99%

Antimacrofouling Efficacy of Innovative Inorganic Nanomaterials Loaded with Booster Biocides

Gutner-Hoch

Freitas

Oliveira

et al. 2018

JMSE

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“…78 L-b-L assembly approach is a firmly established technique where electrostatic interaction enables the alternating assembly of positively and negatively charged GO sheets thereby providing high degree of control over the thickness of films. [79][80][81] However, LB technique is the most promising alternating method to assemble amphiphilic molecules at the air-water interface as it enables precise control over the monolayer thickness and gap between them, providing homogeneous deposition of the monolayer over large areas and could be useful to make hybrid films with varying layer composition. [82][83][84][85][86] Furthermore, lithography and various printing strategies have also been used for patterning graphene that have been acquired from the CVD method for sensing application.…”

Section: Synthesis and Assembly Approaches Toward Biosensing Platformmentioning

confidence: 99%

Graphene based biosensors—Accelerating medical diagnostics to new-dimensions

2017

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Graphene has emerged as a champion material for a variety of applications cutting across multiple disciplines in science and engineering. Graphene and its derivatives have displayed huge potential as a biosensing material due to their unique physicochemical properties, good electrical conductivity, optical properties, biocompatibility, ease of functionalization, and flexibility. Their widespread use in making biosensors has opened up new possibilities for early diagnosis of life-threatening diseases and real-time health monitoring. Following an introduction and discussion on the significance of fabrication protocols and assembly, this review is intended to assess why graphene is suitable to build better biosensors, the working of existing biosensing schemes and their current status toward commercialization for wearable diagnostic and prognostic devices. We believe this review will provide a critical insight for harnessing graphene as a suitable biosensor for the clinical diagnostics, its future prospects and challenges ahead.

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“…The hybrid biosensors showed the fast response time of ∼3 s, the sensitivity of 3.8 µA mM −1 cm −2 , the limit of detection of 170 µM, and the linear detection range of 2-20 mM for the flow-injection amperometric detection of glucose. Zeng et al demonstrated an unconventional method for the LbL assembly of graphene multilayer films using PAAc and poly(ethyleneimine) [109]. They demonstrated this concept by combining the graphene multilayer with a bienzyme system of GOx and glucoamylase for the fabrication of a maltose amperometric biosensor for glucose and maltose.…”

Section: Enzymatic Biosensorsmentioning

confidence: 99%

Development of Biosensors from Polymer Graphene Composites

Dey

2015

Graphene-Based Polymer Nanocomposites in Electronics

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Graphene has been considered as excellent two dimensional support in recent-times for next-generation graphene-polymer composites towards the development of biosensors. The remarkable properties of polymer and graphene with respect to electrical, mechanical, optical and structural aspect offers an ideal composite support for the development of biosensor. The frontiers of this composites technology is by combining of the polymer and graphene through synergy to achieve the goal of enhanced performance of biosensors with good efficiency and cost effectiveness. Graphene combined with polymer enhances the performance of biosensors in terms of sensitivity, selectivity, response time, and multiplexing capability of biosensors for clinical diagnostics. In this chapter, various methods have been provided to produce the polymer-based graphene composite materials and also discussed the importance of the composite materials to the development of biosensors for clinically important analytes, DNAs, aptamers and immunosensors.

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Unconventional Layer-by-Layer Assembly of Graphene Multilayer Films for Enzyme-Based Glucose and Maltose Biosensing

Cited by 168 publications

References 63 publications

Antimacrofouling Efficacy of Innovative Inorganic Nanomaterials Loaded with Booster Biocides

Antimacrofouling Efficacy of Innovative Inorganic Nanomaterials Loaded with Booster Biocides

Graphene based biosensors—Accelerating medical diagnostics to new-dimensions

Development of Biosensors from Polymer Graphene Composites

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